+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016
- * Mario Six, Guntermann & Drunck GmbH, six@gdsys.de
+ * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
*
* based on arch/powerpc/include/asm/mpc85xx_gpio.h, which is
*
* Copyright 2010 eXMeritus, A Boeing Company
- *
- * SPDX-License-Identifier: GPL-2.0+
+ * Copyright 2020-2021 NXP
*/
#include <common.h>
#include <dm.h>
-#include <asm/gpio.h>
#include <mapmem.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <dm/of_access.h>
-DECLARE_GLOBAL_DATA_PTR;
-
-struct ccsr_gpio {
- u32 gpdir;
- u32 gpodr;
- u32 gpdat;
- u32 gpier;
- u32 gpimr;
- u32 gpicr;
-};
-
-struct mpc85xx_gpio_data {
+struct mpc8xxx_gpio_data {
/* The bank's register base in memory */
struct ccsr_gpio __iomem *base;
/* The address of the registers; used to identify the bank */
- ulong addr;
+ phys_addr_t addr;
/* The GPIO count of the bank */
uint gpio_count;
/* The GPDAT register cannot be used to determine the value of output
* for output pins
*/
u32 dat_shadow;
+ ulong type;
+ bool little_endian;
+};
+
+enum {
+ MPC8XXX_GPIO_TYPE,
+ MPC5121_GPIO_TYPE,
};
inline u32 gpio_mask(uint gpio)
return (1U << (31 - (gpio)));
}
-static inline u32 mpc85xx_gpio_get_val(struct ccsr_gpio *base, u32 mask)
+static inline u32 mpc8xxx_gpio_get_val(struct udevice *dev, u32 mask)
{
- return in_be32(&base->gpdat) & mask;
-}
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
-static inline u32 mpc85xx_gpio_get_dir(struct ccsr_gpio *base, u32 mask)
-{
- return in_be32(&base->gpdir) & mask;
+ if (data->little_endian)
+ return in_le32(&data->base->gpdat) & mask;
+ else
+ return in_be32(&data->base->gpdat) & mask;
}
-static inline void mpc85xx_gpio_set_in(struct ccsr_gpio *base, u32 gpios)
+static inline u32 mpc8xxx_gpio_get_dir(struct udevice *dev, u32 mask)
{
- clrbits_be32(&base->gpdat, gpios);
- /* GPDIR register 0 -> input */
- clrbits_be32(&base->gpdir, gpios);
-}
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
-static inline void mpc85xx_gpio_set_low(struct ccsr_gpio *base, u32 gpios)
-{
- clrbits_be32(&base->gpdat, gpios);
- /* GPDIR register 1 -> output */
- setbits_be32(&base->gpdir, gpios);
+ if (data->little_endian)
+ return in_le32(&data->base->gpdir) & mask;
+ else
+ return in_be32(&data->base->gpdir) & mask;
}
-static inline void mpc85xx_gpio_set_high(struct ccsr_gpio *base, u32 gpios)
+static inline int mpc8xxx_gpio_open_drain_val(struct udevice *dev, u32 mask)
{
- setbits_be32(&base->gpdat, gpios);
- /* GPDIR register 1 -> output */
- setbits_be32(&base->gpdir, gpios);
-}
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
-static inline int mpc85xx_gpio_open_drain_val(struct ccsr_gpio *base, u32 mask)
-{
- return in_be32(&base->gpodr) & mask;
+ if (data->little_endian)
+ return in_le32(&data->base->gpodr) & mask;
+ else
+ return in_be32(&data->base->gpodr) & mask;
}
-static inline void mpc85xx_gpio_open_drain_on(struct ccsr_gpio *base, u32
+static inline void mpc8xxx_gpio_open_drain_on(struct udevice *dev, u32
gpios)
{
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
/* GPODR register 1 -> open drain on */
- setbits_be32(&base->gpodr, gpios);
+ if (data->little_endian)
+ setbits_le32(&data->base->gpodr, gpios);
+ else
+ setbits_be32(&data->base->gpodr, gpios);
}
-static inline void mpc85xx_gpio_open_drain_off(struct ccsr_gpio *base,
+static inline void mpc8xxx_gpio_open_drain_off(struct udevice *dev,
u32 gpios)
{
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
/* GPODR register 0 -> open drain off (actively driven) */
- clrbits_be32(&base->gpodr, gpios);
+ if (data->little_endian)
+ clrbits_le32(&data->base->gpodr, gpios);
+ else
+ clrbits_be32(&data->base->gpodr, gpios);
}
-static int mpc85xx_gpio_direction_input(struct udevice *dev, uint gpio)
+static int mpc8xxx_gpio_direction_input(struct udevice *dev, uint gpio)
{
- struct mpc85xx_gpio_data *data = dev_get_priv(dev);
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
+ u32 mask = gpio_mask(gpio);
+
+ /* GPDIR register 0 -> input */
+ if (data->little_endian)
+ clrbits_le32(&data->base->gpdir, mask);
+ else
+ clrbits_be32(&data->base->gpdir, mask);
- mpc85xx_gpio_set_in(data->base, gpio_mask(gpio));
return 0;
}
-static int mpc85xx_gpio_set_value(struct udevice *dev, uint gpio, int value)
+static int mpc8xxx_gpio_set_value(struct udevice *dev, uint gpio, int value)
{
- struct mpc85xx_gpio_data *data = dev_get_priv(dev);
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
+ struct ccsr_gpio *base = data->base;
+ u32 mask = gpio_mask(gpio);
+ u32 gpdir;
if (value) {
- data->dat_shadow |= gpio_mask(gpio);
- mpc85xx_gpio_set_high(data->base, gpio_mask(gpio));
+ data->dat_shadow |= mask;
} else {
- data->dat_shadow &= ~gpio_mask(gpio);
- mpc85xx_gpio_set_low(data->base, gpio_mask(gpio));
+ data->dat_shadow &= ~mask;
}
- return 0;
-}
-static int mpc85xx_gpio_direction_output(struct udevice *dev, uint gpio,
- int value)
-{
- return mpc85xx_gpio_set_value(dev, gpio, value);
-}
+ if (data->little_endian)
+ gpdir = in_le32(&base->gpdir);
+ else
+ gpdir = in_be32(&base->gpdir);
-static int mpc85xx_gpio_get_value(struct udevice *dev, uint gpio)
-{
- struct mpc85xx_gpio_data *data = dev_get_priv(dev);
+ gpdir |= gpio_mask(gpio);
- if (!!mpc85xx_gpio_get_dir(data->base, gpio_mask(gpio))) {
- /* Output -> use shadowed value */
- return !!(data->dat_shadow & gpio_mask(gpio));
+ if (data->little_endian) {
+ out_le32(&base->gpdat, gpdir & data->dat_shadow);
+ out_le32(&base->gpdir, gpdir);
+ } else {
+ out_be32(&base->gpdat, gpdir & data->dat_shadow);
+ out_be32(&base->gpdir, gpdir);
}
- /* Input -> read value from GPDAT register */
- return !!mpc85xx_gpio_get_val(data->base, gpio_mask(gpio));
+ return 0;
}
-static int mpc85xx_gpio_get_open_drain(struct udevice *dev, uint gpio)
+static int mpc8xxx_gpio_direction_output(struct udevice *dev, uint gpio,
+ int value)
{
- struct mpc85xx_gpio_data *data = dev_get_priv(dev);
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
- return !!mpc85xx_gpio_open_drain_val(data->base, gpio_mask(gpio));
+ /* GPIO 28..31 are input only on MPC5121 */
+ if (data->type == MPC5121_GPIO_TYPE && gpio >= 28)
+ return -EINVAL;
+
+ return mpc8xxx_gpio_set_value(dev, gpio, value);
}
-static int mpc85xx_gpio_set_open_drain(struct udevice *dev, uint gpio,
- int value)
+static int mpc8xxx_gpio_get_value(struct udevice *dev, uint gpio)
{
- struct mpc85xx_gpio_data *data = dev_get_priv(dev);
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
- if (value)
- mpc85xx_gpio_open_drain_on(data->base, gpio_mask(gpio));
- else
- mpc85xx_gpio_open_drain_off(data->base, gpio_mask(gpio));
+ if (!!mpc8xxx_gpio_get_dir(dev, gpio_mask(gpio))) {
+ /* Output -> use shadowed value */
+ return !!(data->dat_shadow & gpio_mask(gpio));
+ }
- return 0;
+ /* Input -> read value from GPDAT register */
+ return !!mpc8xxx_gpio_get_val(dev, gpio_mask(gpio));
}
-static int mpc85xx_gpio_get_function(struct udevice *dev, uint gpio)
+static int mpc8xxx_gpio_get_function(struct udevice *dev, uint gpio)
{
- struct mpc85xx_gpio_data *data = dev_get_priv(dev);
int dir;
- dir = !!mpc85xx_gpio_get_dir(data->base, gpio_mask(gpio));
+ dir = !!mpc8xxx_gpio_get_dir(dev, gpio_mask(gpio));
return dir ? GPIOF_OUTPUT : GPIOF_INPUT;
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
-static int mpc85xx_gpio_ofdata_to_platdata(struct udevice *dev)
+static int mpc8xxx_gpio_of_to_plat(struct udevice *dev)
{
- struct mpc85xx_gpio_plat *plat = dev_get_platdata(dev);
- fdt_addr_t addr;
- fdt_size_t size;
-
- addr = fdtdec_get_addr_size_auto_noparent(gd->fdt_blob,
- dev_of_offset(dev),
- "reg", 0, &size, false);
- plat->addr = addr;
- plat->size = size;
- plat->ngpios = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
- "ngpios", 32);
+ struct mpc8xxx_gpio_plat *plat = dev_get_plat(dev);
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
+
+ if (dev_read_bool(dev, "little-endian"))
+ data->little_endian = true;
+
+ plat->addr = dev_read_addr_size_index(dev, 0, (fdt_size_t *)&plat->size);
+ plat->ngpios = dev_read_u32_default(dev, "ngpios", 32);
return 0;
}
#endif
-static int mpc85xx_gpio_platdata_to_priv(struct udevice *dev)
+static int mpc8xxx_gpio_plat_to_priv(struct udevice *dev)
{
- struct mpc85xx_gpio_data *priv = dev_get_priv(dev);
- struct mpc85xx_gpio_plat *plat = dev_get_platdata(dev);
+ struct mpc8xxx_gpio_data *priv = dev_get_priv(dev);
+ struct mpc8xxx_gpio_plat *plat = dev_get_plat(dev);
unsigned long size = plat->size;
+ ulong driver_data = dev_get_driver_data(dev);
if (size == 0)
size = 0x100;
priv->addr = plat->addr;
- priv->base = map_sysmem(CONFIG_SYS_IMMR + plat->addr, size);
+ priv->base = map_sysmem(plat->addr, size);
if (!priv->base)
return -ENOMEM;
priv->gpio_count = plat->ngpios;
priv->dat_shadow = 0;
+ priv->type = driver_data;
+
return 0;
}
-static int mpc85xx_gpio_probe(struct udevice *dev)
+static int mpc8xxx_gpio_probe(struct udevice *dev)
{
struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
- struct mpc85xx_gpio_data *data = dev_get_priv(dev);
+ struct mpc8xxx_gpio_data *data = dev_get_priv(dev);
char name[32], *str;
- mpc85xx_gpio_platdata_to_priv(dev);
+ mpc8xxx_gpio_plat_to_priv(dev);
- snprintf(name, sizeof(name), "MPC@%lx_", data->addr);
+ snprintf(name, sizeof(name), "MPC@%.8llx",
+ (unsigned long long)data->addr);
str = strdup(name);
if (!str)
return -ENOMEM;
+ if (device_is_compatible(dev, "fsl,qoriq-gpio")) {
+ if (data->little_endian)
+ out_le32(&data->base->gpibe, 0xffffffff);
+ else
+ out_be32(&data->base->gpibe, 0xffffffff);
+ }
+
uc_priv->bank_name = str;
uc_priv->gpio_count = data->gpio_count;
return 0;
}
-static const struct dm_gpio_ops gpio_mpc85xx_ops = {
- .direction_input = mpc85xx_gpio_direction_input,
- .direction_output = mpc85xx_gpio_direction_output,
- .get_value = mpc85xx_gpio_get_value,
- .set_value = mpc85xx_gpio_set_value,
- .get_open_drain = mpc85xx_gpio_get_open_drain,
- .set_open_drain = mpc85xx_gpio_set_open_drain,
- .get_function = mpc85xx_gpio_get_function,
+static const struct dm_gpio_ops gpio_mpc8xxx_ops = {
+ .direction_input = mpc8xxx_gpio_direction_input,
+ .direction_output = mpc8xxx_gpio_direction_output,
+ .get_value = mpc8xxx_gpio_get_value,
+ .set_value = mpc8xxx_gpio_set_value,
+ .get_function = mpc8xxx_gpio_get_function,
};
-static const struct udevice_id mpc85xx_gpio_ids[] = {
- { .compatible = "fsl,pq3-gpio" },
+static const struct udevice_id mpc8xxx_gpio_ids[] = {
+ { .compatible = "fsl,pq3-gpio", .data = MPC8XXX_GPIO_TYPE },
+ { .compatible = "fsl,mpc8308-gpio", .data = MPC8XXX_GPIO_TYPE },
+ { .compatible = "fsl,mpc8349-gpio", .data = MPC8XXX_GPIO_TYPE },
+ { .compatible = "fsl,mpc8572-gpio", .data = MPC8XXX_GPIO_TYPE},
+ { .compatible = "fsl,mpc8610-gpio", .data = MPC8XXX_GPIO_TYPE},
+ { .compatible = "fsl,mpc5121-gpio", .data = MPC5121_GPIO_TYPE, },
+ { .compatible = "fsl,qoriq-gpio", .data = MPC8XXX_GPIO_TYPE },
{ /* sentinel */ }
};
-U_BOOT_DRIVER(gpio_mpc85xx) = {
- .name = "gpio_mpc85xx",
+U_BOOT_DRIVER(gpio_mpc8xxx) = {
+ .name = "gpio_mpc8xxx",
.id = UCLASS_GPIO,
- .ops = &gpio_mpc85xx_ops,
+ .ops = &gpio_mpc8xxx_ops,
#if CONFIG_IS_ENABLED(OF_CONTROL)
- .ofdata_to_platdata = mpc85xx_gpio_ofdata_to_platdata,
- .platdata_auto_alloc_size = sizeof(struct mpc85xx_gpio_plat),
- .of_match = mpc85xx_gpio_ids,
+ .of_to_plat = mpc8xxx_gpio_of_to_plat,
+ .plat_auto = sizeof(struct mpc8xxx_gpio_plat),
+ .of_match = mpc8xxx_gpio_ids,
#endif
- .probe = mpc85xx_gpio_probe,
- .priv_auto_alloc_size = sizeof(struct mpc85xx_gpio_data),
+ .probe = mpc8xxx_gpio_probe,
+ .priv_auto = sizeof(struct mpc8xxx_gpio_data),
};
projects / platform / kernel / u-boot.git / blobdiff